7518590

Driving Circuit and Driving Method of Electro-Optical Device, Electro-Optical Device, and Electronic Apparatus

PublishedApril 14, 2009
Assigneenot available in USPTO data we have
Technical Abstract

Patent Claims
11 claims

Legal claims defining the scope of protection, as filed with the USPTO.

1

1. A driving circuit for an electro-optical device that drives an electro-optical device having, on an image display region on a substrate, a plurality of data lines and a plurality of scanning lines, and a plurality of pixel units electrically connected to the scanning lines and the data lines, the driving circuit for an electro-optical device comprising: a scanning line driving circuit that, with respect to a plurality of partial regions, which are obtained by dividing the image display region by division lines along the scanning lines, supplies scanning signals alternately to the scanning lines in the different partial regions, such that supplying a scanning signal to a first partial region is immediately followed by supplying another scanning signal to a second partial region before sending any scanning signal to the first partial region again, the first and second partial regions being different partial regions; and an image signal supply circuit that generates image signals based on display data and supplies the image signals to the plurality of data lines, wherein each field period, which is defined by a vertical synchronizing signal according to display data, has a vertical retrace period and each of the plurality of the partial regions is subjected to horizontal scanning in a 1/n horizontal scanning period obtained by dividing one horizontal scanning period, which is defined by a horizontal synchronizing signal according to display data, by the total number n, where n is a natural number of two or more, of the plurality of partial regions, and the scanning line driving circuit supplies the scanning signals such that a supply sequence of the scanning signals to one scanning line, which is disposed at an edge of one side along the scanning lines in the image display region, among the plurality of scanning lines becomes last for each field period.

2

2. The driving circuit for an electro-optical device according to claim 1 , wherein the image signal supply circuit generates the image signals such that the image display region is subjected to vertical scanning in a 1/n field period obtained by dividing one field period by the total number n.

3

3. The driving circuit for an electro-optical device according to claim 1 , wherein the image signal supply circuit generates the image signals while adjusting polarities of the image signals to any one of positive and negative voltages with respect to a reference potential.

4

4. The driving circuit for an electro-optical device according to claim 1 , wherein the number of the plurality of partial regions is two, and the scanning line driving circuit supplies the scanning signals alternately to the two partial regions and linear-sequentially to the scanning lines in the respective partial regions.

5

5. The driving circuit for an electro-optical device according to claim 1 , wherein the number of the plurality of partial regions is four, and the scanning line driving circuit supplies the scanning signals alternately to the four partial regions and linear-sequentially to the scanning lines in the respective partial regions.

6

6. An electro-optical device comprising the driving circuit for an electro-optical device according to claim 1 .

7

7. An electronic apparatus comprising the electro-optical device according to claim 6 .

8

8. A driving circuit for an electro-optical device that drives an electro-optical device having, on an image display region on a substrate, a plurality of data lines and a plurality of scanning lines, and a plurality of pixel units electrically connected to the scanning lines and the data lines, the driving circuit for an electro-optical device comprising: a scanning line driving circuit that, with respect to a plurality of partial regions, which are obtained by dividing the image display region by division lines along the scanning lines, supplies scanning signals alternately to the scanning lines in the different partial regions; an image signal supply circuit that generates image signals based on display data and supplies the image signals to the plurality of data lines; and a correction circuit that adjusts the length of a last horizontal scanning period in one field period based on the vertical synchronizing signal and the horizontal synchronizing signal such that the last horizontal scanning period ends in a period from the start of a supply period of a last scanning signal to the end of the vertical retrace period, wherein each field period, which is defined by a vertical synchronizing signal according to display data, has a vertical retrace period and each of the plurality of the partial regions is subjected to horizontal scanning in a 1/n horizontal scanning period obtained by dividing one horizontal scanning period, which is defined by a horizontal synchronizing signal according to display data, by the total number n, where n is a natural number of two or more, of the plurality of partial regions, and the scanning line driving circuit supplies the scanning signals such that a supply sequence of the scanning signals to one scanning line, which is disposed at an edge of one side along the scanning lines in the image display region, among the plurality of scanning lines becomes last for each field period.

9

9. A driving method for an electro-optical device that drives an electro-optical device having, on an image display region on a substrate, a plurality of data lines and a plurality of scanning lines, and a plurality of pixel units electrically connected to the scanning lines and the data lines, the driving method for an electro-optical device comprising: supplying, with respect to a plurality of partial regions, which are obtained by dividing the image display region by division lines along the scanning lines, scanning signals alternately to the scanning lines in different partial regions, such that supplying a scanning signal to a first partial region is immediately followed by supplying another scanning signal to a second partial region before sending any scanning signal to the first partial region again, the first and second partial regions being different partial regions; and generating image signals based on display data and supplying the image signals to the plurality of data lines, wherein, each field period, which is defined by a vertical synchronizing signal according to display data, has a vertical retrace period and each of the plurality of the partial regions is subjected to horizontal scanning in a 1/n horizontal scanning period obtained by dividing one horizontal scanning period, which is defined by a horizontal synchronizing signal according to display data, by the total number n, where n is a natural number of two or more, of the plurality of partial regions, and in supplying the scanning signals, the scanning signals are supplied such that a supply sequence of the scanning signals to one scanning line disposed at an edge of one side along the scanning lines in the image display region among the plurality of scanning lines becomes last for each field period.

10

10. The driving method for an electro-optical device according to claim 9 , wherein, in generating the image signals, the image signals are generated such that the image display region is subjected to vertical scanning in a 1/n field period obtained by dividing one field period by the total number n.

11

11. The driving method for an electro-optical device according to claim 9 , wherein, in generating the image signals, the image signals are generated while polarities of the image signals are adjusted to any one of positive and negative voltages with respect to a reference potential.

Patent Metadata

Filing Date

Unknown

Publication Date

April 14, 2009

Inventors

Hiroshi Yoshimoto

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Cite as: Patentable. “DRIVING CIRCUIT AND DRIVING METHOD OF ELECTRO-OPTICAL DEVICE, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS” (7518590). https://patentable.app/patents/7518590

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